Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

theatresonline.com

Theatre Tickets London. West End Shows. What's on theatres near me.

Page Load Speed

4.3 sec in total

First Response

540 ms

Resources Loaded

2.7 sec

Page Rendered

1.1 sec

theatresonline.com screenshot

About Website

Welcome to theatresonline.com homepage info - get ready to check Theatres Online best content for United Kingdom right away, or after learning these important things about theatresonline.com

Book West End Theatre tickets and find out whats on at theatres across the UK, Find shows, Concerts and Events near me

Visit theatresonline.com

Key Findings

We analyzed Theatresonline.com page load time and found that the first response time was 540 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

theatresonline.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value23.3 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value1,880 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value21.6 s

1/100

10%

Network Requests Diagram

theatresonline.com

540 ms

styles.css

293 ms

temp.css

200 ms

jquery.min.js

445 ms

home1.js

206 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 83% of them (89 requests) were addressed to the original Theatresonline.com, 7% (8 requests) were made to A1.awin1.com and 3% (3 requests) were made to Track.webgains.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Track.webgains.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 291.5 kB (17%)

Content Size

1.8 MB

After Optimization

1.5 MB

In fact, the total size of Theatresonline.com main page is 1.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 99.1 kB

  • Original 115.4 kB
  • After minification 112.9 kB
  • After compression 16.3 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 99.1 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 75.0 kB

  • Original 1.5 MB
  • After minification 1.4 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Theatres Online images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 92.2 kB

  • Original 143.8 kB
  • After minification 132.8 kB
  • After compression 51.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 92.2 kB or 64% of the original size.

CSS Optimization

-81%

Potential reduce by 25.2 kB

  • Original 31.0 kB
  • After minification 24.7 kB
  • After compression 5.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Theatresonline.com needs all CSS files to be minified and compressed as it can save up to 25.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (21%)

Requests Now

101

After Optimization

80

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Theatres Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

theatresonline.com accessibility score

74

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

theatresonline.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

theatresonline.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Theatresonline.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Theatresonline.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Theatres Online. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: